In the quest of development, we are exploiting the mother nature recklessly and injecting poison in the natural environment. Now this has exceeded the limit, earth’s surface is getting warmer, the ecological system of earth started dying. This will kill us all very soon unless we take immediate action to rejuvenate it. Wind energy can help us to a great extent. Fans of wind turbines can make the earth cooler.
Cause of Global Warming
What is causing global warming is very important to understand. In the journey of social and industrial development, we are using fossil fuels like, gasoline, diesel, coal etc. to operate our power plants, to drive our vehicles, in aviation, in shipping and manufacturing industries in an ever increasing manner. This massive usage of fossil fuels are generating huge amount of carbon dioxide and other greenhouse gasses and those are getting released in the atmosphere freely ,causing Green House Effect (GHF) and resulting in to Global Warming.
What is Green House Effect
When gasses like Carbon Dioxide, Methane and some other gasses gets released as a result of fossil fuel burning, these gases goes up and makes an shield in the upper atmosphere. This shield acts as an insulator and obstruct earth’s natural heat dissipation process making it warmer then the habitable level. This is creating many adverse impact in our eco system endangering the life of every living beings including us.
During last decade, the rate of polar ice melting has gone up by three times. Eventually, it is increasing the mean sea level and at some point in future, it can engulf low lying lands of many countries like USA, Bangladesh, and Netherlands.GHG pollution is also making natural water bodies more and more acidic endangering the life of aquatic animals and other form of lives.According to an estimate China, USA, EU, India, Russia and Japan are the top responsible countries for emitting GHG.
However, because of the greenhouse effect, surface temperature of earth is rising at a continuous rate.
- In a study it is found, that between 1906 and 2005 surface temperature of earth has been increased at a rate of 0.6 °C to 0.9°C on an average.
- In another study in 2013, IPCC (Intergovernmental Panel on Climate Change) reported that between 1880 and 2012 an increase in global average surface temperature was approximately 0.9 °C (1.5 °F).
- In last 50 years this rate has almost increased to a double fold.
- Further the estimate is that the earth surface temperature may increase between 3 and 4 °C (5.4 and 7.2 °F) by 2100,comapiring to the average earth temp in 1986–2005.
Thus, Global Warming is acting as a silent killer for our civilization. ‘Think Tanks’ across the globe are raising serious concerns about this and emphasising on the urgent counter measures. Almost all countries across the world have understood the necessity and trying to find out feasible ways and means to reduce the usage of fossil fuel in order to control down the GHG emission. India has also joined the league and committed to take a lead role in reduction of global warming.
How to Reduce Green House Effect-Thus Global Warming
In India, per capita electricity consumption (1,181kwh) is much lower than developed world countries like USA (89455.6 kwh) as on date, but the consumption is growing everyday along with the economic development of the country. Therefore, the emission of Green House Gasses is also increasing in equal proportion.
In India, different sectors of the society contributes in this pollution at different proportions.
- Electricity & Heat production : 31%.
- Industry: 21%.
- Agriculture, Deforestation etc.:4%.
- Transportation: 14%.
- Other Energy: 10%
As the electricity generation in conventional method shares 31% of emissions, attacking this portion and reducing it as much as possible in a phased manner could a meaningful immediate solution.
Renewable energy sources, particularly wind and solar, have developed in such a level that these can be the economic alternatives for coal and lignite based power generation process. Also we have enough resources to harness the sun and wind in our country. Though, India is producing wind energy (electricity)for a long time, but only during recently has taken up major steps to increase the share of it at an accelerated pace. As on date, around 18% of total energy is being produced from Renewable sources (like Solar, Wind, Biomasses, Small Hydro )and rest 92% are from conventional method. Now in next 10years(by 2030),there is a target to push it to 60% (from 18%). A very big target indeed! But in a paper recently published by Harvard School of Engineering, researchers says that India can go even up to 80% by 2040 with good economics thus, can reduce CO2 emissions by 85%. If that happen, it will be a great contribution from our country to the world.
Participation of Wind Energy
I am a man from wind energy, I can see that it has been developed as a high potential and cost effective source of renewable energy in recent decades. As a result, now drawing considerable attention form the investors and the Governments worldwide. In fact, Wind Energy technology is one of the fastest-growing technology within the renewable energy space. Usage of wind power is rising worldwide because of its improved cost competitiveness when compared with the fossil fuel based electricity generation method. In last two decades, total generation capacity of electricity from wind energy has increased by 75 times across the globe, from 7.5GW in 1997 to 564GW in 2018 and adding up every year, according to IRENA’s latest data published in 2019. I think, total global potential of wind energy is perhaps beyond any estimation at this moment, because of continuous technological developments in turbine technology, making previously unviable sites viable now for wind energy generation. In India, onshore wind energy potential is 302 GW at 100 meter Hub height and this estimate is much more than earlier estimate of 103 GW at 80meter hub height. Technology improvement has made it possible to increase the hub height by 20 meters and beyond.
Government of India has a target to produce 60GW of energy from wind by the end of 2022, as a part of their program to produce total 175GW of energy from various renewable sources.Though,because of many reasons it doesn’t look like that achieving 60GW will be possible within this time frame, nevertheless it will arrive somewhere nearby as per GWECreport.
As of now, out of total 18% share of renewable energy in our national power capacity, wind power is contributing 10% . Our Government has a plan to increase the share of ‘renewables’ from 18% to 54% by 2030, and wind energy will contribute by 17 % in it. Further pushing the ‘renewables’ share to 80% by 2040,wind energy require to contribute by 58%. So, wind energy sector has a great future in our country. Harvard researchers also estimates that this progress wouldn’t be an expensive business for the Government, rather would come cheaper than the conventional coal-dominated power generation.
MNRE (2015) report truly said that ‘Renewable Energy offers the opportunity to contribute to social and economic development, energy access, secure energy supply, climate change mitigation, and the reduction of negative environmental and health impacts.’ Therefore, can help to save our planet from a disastrous overheating.